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-rw-r--r--Documentation/devicetree/bindings/arm/tegra.txt14
-rw-r--r--Documentation/devicetree/bindings/usb/tegra-usb.txt13
2 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/tegra.txt b/Documentation/devicetree/bindings/arm/tegra.txt
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+++ b/Documentation/devicetree/bindings/arm/tegra.txt
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+NVIDIA Tegra device tree bindings
+-------------------------------------------
+
+Boards with the tegra20 SoC shall have the following properties:
+
+Required root node property:
+
+compatible = "nvidia,tegra20";
+
+Boards with the tegra30 SoC shall have the following properties:
+
+Required root node property:
+
+compatible = "nvidia,tegra30";
diff --git a/Documentation/devicetree/bindings/usb/tegra-usb.txt b/Documentation/devicetree/bindings/usb/tegra-usb.txt
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index 000000000000..035d63d5646d
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+++ b/Documentation/devicetree/bindings/usb/tegra-usb.txt
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+Tegra SOC USB controllers
+
+The device node for a USB controller that is part of a Tegra
+SOC is as described in the document "Open Firmware Recommended
+Practice : Universal Serial Bus" with the following modifications
+and additions :
+
+Required properties :
+ - compatible : Should be "nvidia,tegra20-ehci" for USB controllers
+ used in host mode.
+ - phy_type : Should be one of "ulpi" or "utmi".
+ - nvidia,vbus-gpio : If present, specifies a gpio that needs to be
+ activated for the bus to be powered.